diff --git a/Ink Canvas/Helpers/InkRecognitionManager.cs b/Ink Canvas/Helpers/InkRecognitionManager.cs
index dd42b114..319a0e97 100644
--- a/Ink Canvas/Helpers/InkRecognitionManager.cs	
+++ b/Ink Canvas/Helpers/InkRecognitionManager.cs	
@@ -40,8 +40,7 @@ namespace Ink_Canvas.Helpers
         {
             try
             {
-                var tryModern = WinRtInkShapeRecognizer.IsApiAvailable
-                                && (Environment.Is64BitProcess || Environment.Is64BitOperatingSystem);
+                var tryModern = WinRtInkShapeRecognizer.IsApiAvailable && Environment.Is64BitProcess;
 
                 _isModernSystemAvailable = false;
                 if (tryModern)
diff --git a/Ink Canvas/Helpers/InkShapeRecognition.cs b/Ink Canvas/Helpers/InkShapeRecognition.cs
index 56555d20..60015c44 100644
--- a/Ink Canvas/Helpers/InkShapeRecognition.cs	
+++ b/Ink Canvas/Helpers/InkShapeRecognition.cs	
@@ -17,14 +17,13 @@ namespace Ink_Canvas.Helpers
     public static class ShapeRecognitionRouter
     {
         /// <summary>
-        /// 自动模式：在 64 位 Windows 上优先 WinRT（即使当前进程因 Prefer32Bit 以 WOW64 运行）；
-        /// 32 位系统上走 IACore。与「仅看进程是否 64 位」相比，更符合用户在 x64 系统上的预期。
+        /// 自动模式：按当前进程位数选择——<c>64</c> 位进程用 WinRT，<c>32</c> 位进程（含 x86 目标在 WOW64 下运行）用 IACore。
         /// </summary>
         public static bool ResolveUseWinRt(ShapeRecognitionEngineMode mode)
         {
             if (mode == ShapeRecognitionEngineMode.WinRT) return true;
             if (mode == ShapeRecognitionEngineMode.IACore) return false;
-            return Environment.Is64BitOperatingSystem;
+            return Environment.Is64BitProcess;
         }
 
         public static bool ShouldRunShapeRecognition(bool inkToShapeEnabled, ShapeRecognitionEngineMode mode)
diff --git a/Ink Canvas/InkCanvasForClass.csproj b/Ink Canvas/InkCanvasForClass.csproj
index f0503375..44d6678b 100644
--- a/Ink Canvas/InkCanvasForClass.csproj	
+++ b/Ink Canvas/InkCanvasForClass.csproj	
@@ -36,8 +36,8 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='x86 Debug|AnyCPU'">
     <DebugType>embedded</DebugType>
     <OutputPath>bin\$(Configuration)\</OutputPath>
-    <PlatformTarget>AnyCPU</PlatformTarget>
-    <Prefer32Bit>false</Prefer32Bit>
+    <PlatformTarget>x86</PlatformTarget>
+    <Prefer32Bit>true</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>embedded</DebugType>